java File类-树状结构目录显示

package TimeClass01;
/**
 * 树状结构目录显示
 */
import java.io.File;

public class Filestudy {

    public static void PrintFile(File file, int level) {
    for (int i = 0; i < level; i++) {
        System.out.print("----");
    }
    System.out.println(file.getName());
    if (file.isDirectory()) {
        File[] files = file.listFiles();
        for (File temp : files) {
        PrintFile(temp, level + 1);
        }
    }
    }

    public static void main(String[] args) {
    File f = new File("e:/java");
    PrintFile(f, 0);

    }
}